Block chain (database)

A block chain or blockchain is a permissionless distributed database based on the bitcoin protocol that maintains a continuously growing list of data records hardened against tampering and revision, even by its operators. The initial and most widely known application of block chain technology is the public ledger of transactions for bitcoin, which has been the inspiration for similar implementations often known as altchains.

Etymology

The block chain consists of blocks that hold timestamped batches of recent valid transactions. Each block includes the hash of the prior block, linking the blocks together. The linked blocks form a chain, with each additional block reinforcing those before it, thus giving the database type its name.

Model

A block chain implementation consists of two kinds of records: transactions and blocks.

Transactions

Transactions are the content to be stored in the block chain.Transactions are created by participants using the system. In the case of cryptocurrencies, a transaction is created anytime a bitcoin owner sends cryptocurrency to another.

Latest News for: Block chain architecture

Coreblockchain developers will usually design the blockchain protocols, design consensus protocols and security patterns for the network, design network architecture and supervise the entire network in their roles. Software developers use the architecture created by the core blockchain developers to develop decentralised apps....

This is one of the main reasons why it’s essential in the bitcoin architecture to have a majority consensus when accepting a block onto the chain. With the mining community’s distributed nature, the bitcoin architecture tries to protect against powerful entities from modifying the block....

Dec. 27, 2018 ... The bank now holds more than 50 patents related to blockchain technologies, the report said ... The new technologies being incorporated to this ATM-as-a-service architecture may include block-chain, public cloud, docker/container, micro-services, big data and analytics, and/or other technologies ... Topics ... Companies ... RelatedContent....

Behind the cryptocurrency is a DAGblock lattice architecture, which provides each account with its own blockchain (account-chain) that can only be modified by the account owner ... But there are also some disadvantages, such as that block confirmations are stored off-chain....

As an investor, how can I find the blockchain unicorn? First, it’s clear that blockchain is uniquely suited to applications such as supply chains. A second challenge for blockchain is accelerating the speed at which data can be uploaded and verified, which with each iteration is adding a new block to the chain....

LONDON, October 2, 2018 /PRNewswire via COMTEX/ -- LONDON, October 2, 2018 /PRNewswire/ -- ...Thomas Brook, Right of Reply CEO stated ... We are delighted that David will be joining the board of directors and that we will be working closely NSLI on the architecture of our blockchain enabled platform.". Note to Editors. Right of Reply ... David Orban....

OneWorld Instech is a global insurance technology provider offering solutions built on a modern architecture designed to simplify innovation and future-proof insurance processing ... OneWorld's architecture is also designed to support emerging technologies and functionality such as blockchain and smart contracts....

Block synchronization and find node modules are optimized for the sake of stability and responsiveness. Compared to testnet, only a third of time is needed to synchronize blocks. Disk I/O is cut by more than a half with optimized parameters and architecture of the storage layer ...BLOCK EXPLORER....

Kallon, Chineseblockchain + agricultural laboratory ... Li Yanbo, a development consultant for blockchain, has studied cryptography at the Stanford University, and after years of working in the United States high Qualcomm, it specializes in distributed system architecture design....

Although R3 still uses the word "blockchain" to help market their product, Corda has no chain of blocks at all. More than any other "distributed ledger" platform I'm aware of, Corda departs radically from the architecture of conventional blockchains ... ....

“We are offering special scholarships for Indian students called 'Aspire' ... “It is important to offer special support to international students in their first year after school ... In addition, Analytics and DataScience, Design & Architecture, as well as BlockChainTechnology courses are fast gaining traction among students ... ....